Hi
How to test TOMCAT CLUSTERING with out Load balancer
As Per the Tomcat 5.5.23 Cluster HowTo Documents
I have only tried to Cluster 2 TOMCATS on SAME Machine , Sharing same JVM.
but not able to test the clustering
Am i on doing some thing wrong in here.....?
with regards
Karthik
Landon Fabbricino wrote:
I honestly have not tried clustering tomcat without Apache before.
Just recently I set up a server farm with apache on one server and tomcat on
two other servers (so 3 physical machines)
Apache contains the "logic" to handle the load balancing between the two
tomcats:
jk.conf
JkWorkersFile conf/workers.properties
JkLogFile logs/jk_conn.log
JkLogLevel error
JkMount /loadbalance-test* loadbalancer
workers.properties
### Load Balancer Instances ####################################
worker.tomcat1.type=ajp13
worker.tomcat1.host=server1.domain.com
worker.tomcat1.port=8009 #AJP Port
worker.tomcat1.lbfactor=1
worker.tomcat4.type=ajp13
worker.tomcat4.host=server2.domain.com
worker.tomcat4.port=8010 #AJP Port
worker.tomcat4.lbfactor=1
### Define Mount Points ####################################
# Load Balance #####################
worker.loadbalancer.type=lb
worker.loadbalancer.balance_workers=tomcat1,tomcat2
worker.loadbalancer.sticky_session=False
worker.loadbalancer.method=B
### Load Mount Points ####################################
worker.list=loadbalancer
karthikn <[EMAIL PROTECTED]> 4/30/2008 10:57:51 PM >>>
Hi
As Per the Tomcat 5.5.23 Cluster HowTo Documents
I have only tried to Cluster 2 TOMCATS on SAME Machine , Sharing same JVM.
>> Could you provide your apache's worker.properties file?
I have so far not used any APACHE Http Server for Load Balancing
with regards
Karthik
Landon Fabbricino wrote:
Could you provide your apache's worker.properties file?
karthikn <[EMAIL PROTECTED]> 4/30/2008 8:05:02 AM >>>
Hi
Any more suggestions ?
with regards
Karthik
karthikn wrote:
Hi
>><distributable/>
I have already added the same in my application's web.xml,
but still no improvement.
with regards
Karthik
Landon Fabbricino wrote:
If I am not mistaken, you will need to add the following tag to your web.xml
CATALINA_HOME/webapps/your_app_name/WEB-INF/web.xml
<!-- Required for session-replication in clustering mode -->
<distributable/>
Landon Fabbricino
IT Applications
Phone: 403.225.7515
Fax: 403.225.7604
[EMAIL PROTECTED]
karthikn <[EMAIL PROTECTED]> 4/28/2008 11:34:43 PM >>>
Hi
The Following was done for the Clustering (2 tomcats )
Values TOMCAT5523_I TOMCAT5523_II
Startup 8081 8082
ShutDown 8007 8008
APJ 8009 8010
TCP Listener 4001 4002
tcpListenAddress auto auto
jvmRoute node01 node02
Delpoyment of a war file on TOMCAT5523_I displays in console as
>> INFO: Starting clustering manager at /DATAGRID
Apr 29, 2008 10:17:59 AM
org.apache.catalina.cluster.session.DeltaManager getAll
ClusterSessions
WARNING: Manager [/DATAGRID], requesting session state from
org.apache.catalina.
cluster.mcast.McastMember[tcp://10.10.16.63:4002,catalina,10.10.16.63,4002,
aliv
e=17593]. This operation will timeout if no session state has been
received with
in 60 seconds.
Apr 29, 2008 10:18:59 AM
org.apache.catalina.cluster.session.DeltaManager waitFo
rSendAllSessions
SEVERE: Manager [/DATAGRID]: No session state send at 4/29/08 10:17 AM
received,
timing out after 60,109 ms.
TOMCAT5523_II displays on console as
>>INFO: Replication member
added:org.apache.catalina.cluster.mcast.McastMember[tcp
://10.10.16.63:4001,catalina,10.10.16.63,4001, alive=16]
Apr 29, 2008 10:17:59 AM
org.apache.catalina.cluster.session.ClusterSessionListe
ner messageReceived
SEVERE: Context manager doesn't exist:/DATAGRID
Am i missing something while clustering....
with regards
Karthik
karthikn wrote:
Hi
I have few Questions which i was not able to get TOMCAT CLUSTERING HOWTO
and form.
a) Clustering
1) Do we need to deploy the war files on each individual Tomcat
when joined the clustering.
>> "deploy your apps only to one server, and the cluster will
distribute the deployments across the entire cluster".
This does not seems to work, after following the steps for 2
Tomcats (or am i missing some thing in here.)
2) Is this a must do configuration
>>" Make sure that all nodes have the same time and sync with
NTP service! "
for the clusters to start functioning.
b) Load balancing
1) Using "Using the balancer webapp" , redirects to different
URL's is done,
Can we use the same to redirect to the clustered TOMCATs to
do the load
balancing internally based on
RoundRobinRule,
RandomRedirectRule
Any URL or blog (other then "cluster-howto.html")
which explains the clustering /load balancing in simple steps would be
of wery much help to us.
Prerequisite : TOMCAT 5.5.23 (already in production ,we cannot change
this version) 2 nos
JSDK : 1.6
O/s : UNIX 11
with regards
Karthik
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